Support Gradle configuration cache

[Kantis]

Running SkippyAnalyze task in a project which uses Gradle's configuration cache yields the following error:

1 problem was found storing the configuration cache.
- Task `:autoinvoice:skippyAnalyze` of type `io.skippy.gradle.SkippyAnalyzeTask`: invocation of 'Task.project' at execution time is unsupported.

[fmck3516]

Corresponding E2E test: skippy-io/skippy-regression-suite#2

[fmck3516]

Quick update: All E2E test except TestFailureTest.java pass with Configuration Cache enabled using the changes in #160 . I'm still investigating why the result property for a failed test is set incorrectly with Configuration Cache enabled.

[Kantis]

My best guess is that it's somehow related to not having the class-dirs as inputs, so Gradle doesn't realize the task is stale (due to classpath changing), and the task is not re-run as a result. Simply adding --rerun-tasks to the arguments here might be enough to validate the hypothesis. https://github.com/skippy-io/skippy-regression-suite/blob/8192a55ca11e9793d3ce803fc7be892d5e10ceb3/src/test/java/io/skippy/test/gradle/TestFailureTest.java#L40C17-L40C73

[fmck3516]

I added some logging. From what I can tell, it's not due to tasks not being executed.

What I see: SkippyAnalyzeTask and the test tasks use different instances of TestFailedListener. The tests tasks report failed tests to TestFailedListener@00000000. SkippyAnalyzeTask references TestFailedListener@11111111.

[fmck3516]

I will create a minimal project that demonstrates my problem and reach out to the Gradle folks for help.

[fmck3516]

FYI: https://discuss.gradle.org/t/sharing-objects-across-taks-with-configuration-cache-enabled/48598
Sample repo to re-produce the issue in isolation: https://github.com/skippy-io/gradle-configuration-cache-issue

[fmck3516]

Accidentally closed this issue when squashing the PR. Have to add additional tests and figure out how to solve that for Gradle 7.

@Kantis What version of Gradle are you using? This should be fixed in 0.0.21-SNAPSHOT if you use Gradle 8 or above.

[helios66]

@fmck3516 Amazing work with this tool. However I have a question, how do I use the snapshot version? I'm currently running some experiments with skippy and will like to test out the gradle cache fix before proceeding. The project uses gradle 8.5

[fmck3516]

You can use snapshot versions as follows:

buildscript {
    repositories {
        mavenCentral()
        maven { url = 'https://s01.oss.sonatype.org/content/repositories/snapshots/' }
    }
    dependencies {
        classpath 'io.skippy:skippy-gradle:0.0.21-SNAPSHOT'
    }
}

apply plugin: io.skippy.gradle.SkippyPlugin

repositories {
    maven { url = 'https://s01.oss.sonatype.org/content/repositories/snapshots/' }
}

dependencies {
    testImplementation 'io.skippy:skippy-junit5:0.0.21-SNAPSHOT'
}

[fmck3516]

This has been fixed in release 0.0.22 which has been published to Maven Central and Gradle's Plugin Portal.

PRs:

• Issues/159: Support Gradle configuration cache #169
• issues/159: Support Gradle configuration cache skippy-regression-suite#4